Welcome to your Magnetism and Matters MCQs Mock Test of Class 12th Physics
1.
Q.1. The radius of curvature of the path of charged particle in a uniform magnetic file is directly proportional to the
2.
Q.2. The Mariner’s compass is provided with Gimbals arrangement so as to :
3.
Q.3. The relation between geometric length (L) and magnetic length (Lm) is:
4.
Q4.At a given place on earth’s surface the horizontal component of earth’s magnetic field is 2 × 103-5 T and resultant magnetic field is 4 × 103-5 T. The angle of dip at this place is
6.
Q.6. The magnetic lines of force inside a bar magnet:
7.
Q.7. What is the angle of dip at a place where the horizontal component of earth’s magnetic field is equal to the vertical component?
8.
Q.8. Which of the following has a low value in ferrites?
9.
Q.9. S.I. unit of flux is :
10.
Q.10. The dimensional representation of magnetic flux density is :
11.
Q.11. A magnetic dipole moment is a vector quantity directed from:
12.
Q.12. Tangent law is applicable only when:
13.
Q13. Which of the following property shows the property of ferromagnetic substances?
14.
Q14. The primary origin of magnetism lies in
15.
Q15. S.I. unit of flux is :
16.
Q16. What is the angle of dip at a place where the horizontal component of earth’s magnetic field is equal to the vertical component?
17.
Q17. Which of the following has a low value in ferrites? e
18.
Q18. The dimensional representation of magnetic flux density is :
19.
Q19. Tangent law is applicable only when:
20.
Q20. Ferrites may be:
21.
Q21. The magnetic lines of force inside a bar magnet:
22.
Q22. A magnetic dipole moment is a vector quantity directed from:
23.
Q23. What is the magnetic field in the empty space enclosed by the toroidal solenoid of radius ‘R’? ,
24.
Q24. A current carrying power line carries current from west to east. What will be direction of magnetic field 1 meter above it?
25.
Q25. The dimensional representation of l/MB−−−−−√ is similar to that of:
26.
Q26. On quadrupling the moment of inertia of a magnet, its frequency of oscillation will become:
27.
Q27. The magnetic field strength due to a short bar magnet directed along its axial line at a distance r is B. What is its value at the same distance along the equatorial line?
28.
Q28. The neutral point in the magnetic field of a horizontally placed bar magnet is a point where the magnetic field due to that bar magnet is:
29.
Q29. In a moving coil galvanometer, we use a radial magnetic field so that the galvanometer scale is :
30.
Q30. The force between two parallel wire 2 × 10-7 Nm-1, placed 1 m apart to each other in vacuum. The electric current flowing through the wires is:
31.
Q31. The force acting per unit length of a semi circular wire of radius R carrying a current I is:
32.
Q32. Which of the following has higher magnetic susceptibility?
33.
Q33. The magnetic field of earth is due to:
34.
Q34. In a bar magnet, magnetic lines of force z :
35.
Q35. The Mariner’s compass is provided with Gimbals arrangement so as to :
36.
Q36. A wire of length I has a magnetic moment M. It is then bent into a semi-circular arc. The neyv magnetic moment is :
37.
Q37. The relation between geometric length (L) and magnetic length (Lm) is:
38.
Q38. The radius of curvature of the path of charged particle in a uniform magnetic file is directly proportional to the
39.
Q39. The magnetic field at the centre of a current carrying circular loop is B. If the radius of the loop is doubled keeping the current unchanged, the magnetic field at the centre of loop will become:
40.
Q.40. In a moving coil galvanometer, we use a radial magnetic field so that the galvanometer scale is :
41.
Q.41. On quadrupling the moment of inertia of a magnet, its frequency of oscillation will become:
42.
Q.42. Magnetic moment for solenoid and corresponding bar magnet is
43.
Q.43. The neutral point in the magnetic field of a horizontally placed bar magnet is a point where the magnetic field due to that bar magnet is:
44.
Q.44. A current carrying power line carries current from west to east. What will be direction of magnetic field 1 meter above it?
45.
Q.45.Magnetic moment for solenoid and corresponding bar magnet is
46.
Q.46. In a bar magnet, magnetic lines of force :
47.
Q.47. Which of the following has higher magnetic susceptibility?
48.
Q.48. The force between two parallel wire 2 × 10-7 Nm-1, placed 1 m apart to each other in vacuum. The electric current flowing through the wires is:
49.
Q.49. The magnetic field of earth is due to:
50.
Q50. Which of the following is correct about magnetic monopole?
